Nope, the update checks to make sure that you're on .905 before installing. Though technically if you use the HoB method linked to in post #2 of this thread, I don't think you have to root.

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HoB does not require root. You can use HoB to update to a newer leak. Every one is suggesting not to go past 232 because the security changed and you cant go back to 905. The second option is to FXZ back to 905 then apply 232, but HoB is easier. Read the HoB OP and understand what you are about to do. You can brick your phone.